Fair enough - redsnail: although your licence and medical must reside in a particular state the medical can be renewed anywhere, so you're good.
To JLRK - you have to go through an ATO with EASA, but if you have more than a certain amount of hours (500 for helicopters I think) PIC on a machine that requires two pilots you can self-certify for the exams. You still have to take them all though.
Phil